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(No Model.) 2 SheetsShet 1.

E. FULLFORD T. VAN LAUN. REGENERATIVE GAS BURNER.

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(No Model.) 2 Sheets-Sheet 2.

E. FULLFORD & H. T. VAN'LAUN.

REGENERATIVE GAS BURNER.

No. 400,073. Patented Mar. 26, 1889.

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NrrEn STATES EDIVIN FULLFORD AND HENRY THEODORE VAN LAUN, OF LONDON, ENGLAND.

REGENERATIVE GAS-BURNER.

SPECIFICATION forming part of Letters Patent No. 400,073, dated March 26, 1889.

Application filed July 18, 1888. Serial No. 280,265. (No model.)

To all whom it may concern:

Be it known that we, EDWIN FULLFORD and HENRY THEODORE V AN LAUN, engineers, subjects of the Queen of Great Britain, both of The Minories, in the city of London, England, have invented certain new and useful Improvements in Burners for Regenerative and Other Gas-Lamps; and we do hereby declare the following to be a full-clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification.

This invention relates to the burners used in regenerative and other gas-lamps.

The said invention consists in the combination of devices hereinafter particularly set forth and claimed.

In the accompanying drawings, Figure 1 is a vertical section of a burner embodying our invention applied to a regenerative gas-lamp; Figs. 2, 3, 2L, 5, 6, and 7 represent detailed views of the separate parts of the improved burner. Fig. 8 represents a vertical section of a somewhat modified form of the improved burner. Fig. 9 represents the devices embodying our invention as applied to a complete lamp.

The same letters of reference indicate the same parts in the several figures.

In the said drawings, arepresents the gassupply pipe to the burners of a regenerative gas-lamp, I), being an attachment at the lower end of the pipe through which heated air is supplied to the burner through and between the plates 0 c c.

(Z is a tube having a flange, e, at its lower end, the gas-pipe a being screwed upon its upper end, and the tube being supported in the air-tube b by the radial screws ff. An inner concentric tube, g, is fitted into the tube d, being itself of smaller diameter, but having a narrow flange, it, near its lower end and a similar flange, 2', at its upper end fitting into the tube (Z, the lower end of which has an illternal flange of somewhat less diameter inside, so that the flange h rests upon it, while the lower end of the tube g projects slightly below the flange e. The flange 2' has a number of small notches or recesses, 70, in its periphery, and Z represents a number of small holes through the tube g above the flange 7L.

A cylindrical bar, m, fits in the tube g, having at its lower end a flange, n, corresponding with the flange e, and 0 is a handle or ring below the flange n. The cylinder m is somewhat reduced in diameter at its lower end, and at its upper end is fixed a screwed wire or spindle, p, and r is a cross-bar or nut screwed upon it and retaining the tube g between the flange n and the cross-bar r, the tube having, however, a small amount of end long movement between them. The wire 1') extends for a suflicient distance up the gaspipe and has a knob or nut, s, fixed upon its upper end.

Gas admitted down a passes down through the notches or holes in the flange i into the annular space between the tubes (Z and g, and thence through the ring of holes Z in the latter above the flange 7t into the space between the lower end of the tube g and the reduced part of the central cylinder, m, whence it escapes under the lower projecting end of the tube g and out between the parallel surfaces of the flanges or disks 2 and n, and is then ignited. The whole of the parts fit freely but closely together, so that the surfaces of the disks 6 and n always remain exactly parallel and the flame is perfect in shape; but at the same time the tube g and the cylinder m, with the flange n, are capable of independent rotating movement in the tube g, and also of a certain extent of independent end movement. If the parts of the burner become clogged or dirty, the flange a can be raised and turned against the flange e, and at the same time the tube g and the cylinder m are turned round and are moved slightly endwise independently, and all obstructions are rubbed off and removed.

If it be necessary to clean more thoroughly the separate parts of the burner, it can be unscrewed from the gas-pipe a, and by unscrewing the nut or cross-bar?" the tube g can be drawn up out of the tube (Z and cleaned, and the cylinder m can afterward be drawn down from the tube 9 and cleaned, while the nut s prevents the different parts from becoming entirely separated and lost. In Fig. 8 the lower flange, n, has a central spindle, t,

the upper end 013' which is iir|nl iixed to a crossbar, w, carried at the upper end 0|. a tube, 1, which [its closeb into the tube (I. lly the handle 0 the disk or flange n can be raised and turned round against the flange so as to rub oil any dirt or obstructions, while the parallelism of the two disks is preserved by the guiding-tube r and spindle carried by the movable disk n. The upper end oi the guiding-tube 1 is slightly ex ntnded to prevent it from leaving the tube (7.

Having thus descrilnul our invent ien, what we claim, is-

1. I11 burners 'l'or regmlerative and other gas-lamps, the combination, withthe gas-supply pipe at, of the outer flanged tube, (1, the inner tube, g, perforated near its base, flange 72, below the perforations I through the tube,

notched 0r perforated flange i, inner cylinder or plug, n1, flange n, handle 0, and screwed nut 0r (filOHH'lJiH' r, substantially as herein set l'orl h;

The combination, with the cylinder or plug m and screwed nut 0r cross-bar "r, of the spindle p, nut or stop 5', the outer tube, (Z, the inner tube, g, the lower flange, n, and spindle said tube g having a notched flange at the top and a series of perlo'ratimis near the bottom, substantially as set forth.

In testimony that we claim the foregoing we have hereunto set our hands this 4th day (if July, 188%.

El) WIN l ULLl ORl). llEl RY 'll UGODORE VAN LAU'N.

\Vitnesses:

ARTHUR E. EDWARDs, R. I). Bu'xmmuLn. 

